diff --git a/testserver/localhost/8081/go.mod b/testserver/localhost/8081/go.mod
new file mode 100644
index 0000000..61aa3e8
--- /dev/null
+++ b/testserver/localhost/8081/go.mod
@@ -0,0 +1,3 @@
+module one
+
+go 1.20
diff --git a/testserver/localhost/8082/go.mod b/testserver/localhost/8082/go.mod
new file mode 100644
index 0000000..2b0b1b3
--- /dev/null
+++ b/testserver/localhost/8082/go.mod
@@ -0,0 +1,3 @@
+module two
+
+go 1.20
diff --git a/testserver/localhost/8083/go.mod b/testserver/localhost/8083/go.mod
new file mode 100644
index 0000000..074dd24
--- /dev/null
+++ b/testserver/localhost/8083/go.mod
@@ -0,0 +1,3 @@
+module three
+
+go 1.20
diff --git a/testserver/localhost/8084/go.mod b/testserver/localhost/8084/go.mod
new file mode 100644
index 0000000..1bd51e9
--- /dev/null
+++ b/testserver/localhost/8084/go.mod
@@ -0,0 +1,3 @@
+module four
+
+go 1.20